Amp hour Capacity
Amp hour Capacity is the storage capacity of the battery, as defined by the battery's manufacturer. Selecting the appropriate amp hour capacity determines the longest period of time the charger will charge before automatically shutting off. If the charger is still charging at this point, it provides an error code to the operator. Refer to Section 5, Troubleshooting, to correct this error. Three Amp hour Capacity setpoints are available:
Option | Amp hour rating | Charge Cycle Timer (tc, see Fig. 1, 2, 3 and 4) |
| (4A / 8A charger) | (hours) |
1 | ≤60 / ≤100 | 16 |
2 | ≤100 / ≤200 | 24 |
3 | ≤200 / ≤400 | 48 |
End of Charge Mode
End of Charge Mode defines how the charger terminates the charge cycle. There are three End of Charge Modes:
Option | Mode | Notes |
1 | End of Charge | Charge Profile: IVa |
| (see Figure 1) | Charger goes into standby upon reaching End of Charge |
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| current. Charge will automatically restart if the standby |
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| voltage falls below 12.9V (12V charger) 25.7V (24V charger), |
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| and automatically self terminates. This compensates for battery |
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| |
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| for daily use or for long term storage. |
2 | Equalize | Charge Profile: I1VI2a if previous mode was End of Charge |
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| I1V1I2V2 if previous mode was Float. |
| (see Figure 2 | After constant voltage terminates, charger adjusts its output |
| and Figure 4) | current to 1.5A/3A (4A/8A charger). The current is held |
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| for either 3 hours or until the battery reaches 15.8V (12V |
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| charger) or 30.5V (24V charger). The Equalize cycle automatically |
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| reverts to the previous mode of charge termination after |
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| the completion of 1 cycle. Check the battery manufacturer’s |
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| recommendation regarding the frequency at which batteries |
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| should be equalized. |
3 | Float | Charge Profile: IV1V2 |
| (see Figure 3) | After constant voltage terminates, the charger reduces the |
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| output current to 0.25A (24V charger), and cycles on and off |
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| automatically to maintain an average battery voltage of (float |
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| voltage, FV) 13.3V (12V charger) or 26.6VDC (24V charger). |
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| This will continue until AC power is recycled. This mode of |
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| charging is recommended for daily use or for short term |
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| storage conditions to maintain battery health. |
Fan Modulation - Default setting: Off
Fan Modulation can be turned on or off. If fan modulation is set to Off, the fan runs at full speed whenever the charger is charging. This maximizes charger power output over all operating conditions. If fan modulation is set to On, the speed of the fan is proportional to the temperature of the charger. This mode of operation is quieter.
page 6 | Curtis 1604/08 Manual |
